http://archive.freep.com/VideoNetwork/2944430272001/Colorado-school-shooter-planned-larger-attackhttp://bc_gvpc_od-f.akamaihd.net/media/963482463001/201312/3212/963482463001_2944404556001_f108528c-1e86-4bf0-9edc-aac162916a29.mp4?pubId=35547428001&videoId=2944430272001http://archive.freep.com/VideoNetwork/2944430272001/Colorado-school-shooter-planned-larger-attackhttp://bc_gvpc.edgesuite.net/img/963482463001/201312/92/963482463001_2944000206001_thumbnail-for-video-2944312879001.jpgColorado school shooter planned larger attackKarl Pierson who shot up Arapahoe High School in Colorado had planned a much larger attack, and had scrawled an ominous Latin phrase on his arm before he killed himself, according to authorities.2427colorado school shootingvpcbestnewsbestarapahoe school shootingarapahoe high schoolKUSAvpcNational NewsNewsapp_mainkarl pierson01:50